<template>
  <div class="app">
    <h1>App.vue根组件</h1>
    <hr />
    <box></box>
    <yuan></yuan>
    <zx></zx>
  </div>
</template>

<script>
export default {}
</script>

<style lang="less">
* {
  box-sizing: border-box;
}
</style>
